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<head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb18030">
    <title>Untitled Document</title>
    
</head>
<body>
    <script type="text/javascript">   
        /*
         * param1 Array 
         * param2 Array
         * return true or false
         */
        function arraysSimilar(arr1, arr2){
            if(arr1 instanceof Array && arr2 instanceof Array){
                var key1 = [],key2 = [],len = arr1.length,len2=arr2.length;
                // 数组的长度相等判断
                if(len!=len2){return false;}
                // 类型相同判断
                if(len){
                    // 获取类型列表
                    for(var i= 0;i<len;i++){
                        // 数组1的类型列表字串
                        var item1 = arr1[i], typeFirst = typeOf(item1);
                        if(key1.join().indexOf(typeFirst)<0){
                            key1.push(typeFirst);
                        }
                        
                        // 数组2的类型列表字串
                        var item2 = arr2[i],typeSecond = typeOf(item2);
                        if(key2.join().indexOf(typeSecond)<0){
                            key2.push(typeSecond);
                        } 
                    }
                    key1 = key1.sort();
                    key2 = key2.sort();
                    // 类型字串比较
                    if(key1.join() == key2.join()){
                        return true;
                    }else{
                        return false;
                    }
                }else{
                    // 空数组相等
                    return true;
                }
            }else{
                // 非数组
                return false;
            }

        }
        
        /**
         * 类型判断方法
         * param item 
         * return type(string,function,boolean,number,undefined,null,window,Date,Array,object)
         */
        function typeOf(item){
            var type = typeof item;
            if(type != "object"){
                // 判断基本类型string,function,boolean,number,undefine
            }else if(item === null){
                // check null
                type = "null";
            }else if(item === window){
                // check window
                type ="window";
            }else{
                // 判断object类型object,date,array
                if(item instanceof Date){
                    type = "date";
                }else if(item instanceof Array){
                    type = 'array';
                }else{
                    type = 'object';
                }
            }
            return type;
        }
    </script>
    <script src="testData.js"></script>
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